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Jiayi Zhang - Fullstack Software Engineer in San Francisco, CA

Jiayi Zhang

Junior Full-Stack Engineer specializing in AI automation for FinTech and logistics

FlexportColumbia UniversitySan Francisco, CA3 Years ExperienceJunior LevelWorks On-Site

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About

Full-stack product engineer focused on operational automation with AI in invoice, billing, and shipment workflows. Has shipped production systems using OpenAI APIs and AI agents that materially reduced manual work and cut bill transcription costs by 99%, while also improving UX through human-in-the-loop interfaces and performance tuning.

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Key Strengths

  • Built production AI-powered bill transcription system replacing third-party software
  • Drove major cost reduction from $1 per bill to $0.01 per bill
  • Reduced operator workload substantially through automation
  • Strong full-stack ownership across frontend, backend, and AI integration
  • Practical LLM evaluation using raw-vs-final output comparison
  • Built AI agent for ad hoc charge suggestions using historical shipment and client data
  • Experience turning AI outputs into human-in-the-loop product experiences
  • Performance optimization of slow invoice editor using Datadog metrics, N+1 reduction, and async processing
  • Able to ship zero-to-one workflow automation in ambiguous, client-specific environments
  • Cross-functional collaboration with leadership, customers, product, and design

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Experience

Fullstack Software EngineerFlexport · Feb 2023 – Present
Software Engineer InternICBC · Aug 2022 – Sep 2022internship
Software Engineer InternHuawei · Jun 2021 – Sep 2021internship

Education

Columbia Universitymaster, Computer Science (2022)
UC San Diegobachelor, Computer Science (2021)

Languages

English

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Connect with Jiayi

Jiayi already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

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Hire with Reval

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Jiayi ZhangJunior Full-Stack Engineer specializing in AI automation for FinTech and logistics